基于交通冲突的交织区安全评价方法研究  

Research on the safety evaluation method of weaving segments based on traffic conflict

作　　者：迟佳欣 贺玉龙[1] CHI Jiaxin;HE Yulong(Beijing Key Laboratory of Traffic Engineering,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学交通工程北京市重点实验室,北京100124

出　　处：《交通科技与经济》2020年第4期27-32,38,共7页Technology & Economy in Areas of Communications

基　　金：国家重点研发计划资助项目(2017YFC0803903)。

摘　　要：基于事故数据进行安全评价存在局限性,以交通冲突为基础进行交织区不同角度的安全方法评价研究。考虑冲突类型及严重程度将交通冲突综合风险指数作为整体评价指标,运用灰色聚类评价法进行整体评价等级确定,以冲突概率及变道风险为评价指标对交织区行驶区域进行安全分析。结果表明交织区内各区域存在明显的安全区分,从而实现对交织区的安全评价。In the face of the limitations of traditional safety evaluation based on accident data,this paper studies the safety evaluation methods of different angles in the weaving segments based on traffic conflicts.Considering the type and severity of the conflict,the comprehensive risk index of traffic conflict is determined as the overall evaluation index,and the gray evaluation method is used to determine the overall evaluation level.Secondly,the conflict probability and lane change risk are used as the evaluation indexes to analyze the safety of the weaving segments.The result shows that there are obvious security distinctions among different regions in the weaving segments.Finally,the safety evaluation of the weaving area from the whole to the part is realized.

关 键 词：交通冲突 交织区 安全评价 交通冲突综合风险指数 灰色聚类评价法 

分 类 号：U491.2[交通运输工程—交通运输规划与管理]